When Xiao Zhi was three years old, he lost sight in his right eye due to an infection. Despite this setback, he grew up with a cheerful attitude and innocent nature, thanks to his mother's devoted care. However, due to a congenital defect in his eyes, he also lost vision in his left eye at the age of nine. Understanding the challenges he faced, his mother enrolled him in a boarding school for the visually impaired. As they parted ways, Xiao Zhi reassured her, saying, "Don't worry, I'll be fine. I still have my ears!" 

But fate dealt them an even harsher blow. At fourteen, Xiao Zhi began to experience hearing loss, and by the time he turned eighteen, he was completely deaf. In the prime of his youth, Zhi Fukuyama found himself in a world devoid of both light and sound—a realm of profound isolation. Despite countless attempts at various medical treatments that yielded no results, his mother's unwavering love for her son never faltered.

One spring-summer season, amidst the blooming cherry blossoms, destiny took an unexpected turn. Through a seemingly unremarkable moment—with nothing but her fingertips—Reiko managed to alter the course of Zhi Fukuyama's life forever.